文献类型：期刊文献

英文题名：Adaptive quantized tracking control for uncertain switched nonstrict-feedback nonlinear systems with discrete and distributed time-varying delays

作者：Yu, Zhaoxu[1];Dong, Yan[1];Li, Shugang[2];Li, Fangfei[3]

机构：[1]East China Univ Sci & Technol, Dept Automat, Minist Educ, Key Lab Adv Control & Optimizat Chem Proc, Shanghai 200237, Peoples R China;[2]Shanghai Univ, Dept Informat Management, Shanghai, Peoples R China;[3]East China Univ Sci & Technol, Dept Math, Shanghai, Peoples R China

年份：2018

卷号：28

期号：4

起止页码：1145

外文期刊名：INTERNATIONAL JOURNAL OF ROBUST AND NONLINEAR CONTROL

收录：;EI(收录号：20180404677457);WOS:【SCI-EXPANDED(收录号:WOS:000423113300002)】；

基金：National Natural Science Foundation of China, Grant/Award Number: 61304071, 61403139, and 71271132; Fundamental Research Funds for the Central Universities, Grant/Award Number: 222201714055 and 222201717006; Shanghai Pujiang Program, Grant/Award Number: 15PJC049

语种：英文

外文关键词：adaptive control; Lyapunov-Razumikhin method; quantized input; switched nonlinear system; time-varying delay

摘要：This paper is concerned with an adaptive tracking problem for a more general class of switched nonstrict-feedback nonlinear time-delay systems in the presence of quantized input. The system structure in a nonstrict-feedback form, the discrete and distributed time-varying delays, the sector-bounded quantized input, and arbitrary switching behavior are involved in the considered systems. In particular, to overcome the difficulties from the distributed time-varying delays and the sector-bounded quantized input, the mean-value theorem for integrals and some special techniques are exploited respectively. Moreover, by combining the Lyapunov-Razumikhin method, dynamic surface control technique, fuzzy logic systems approximation, and variable separation technique, a quadratic common Lyapunov function is easily built for all subsystems and a common adaptive quantized control scheme containing only 1 adaptive parameter is proposed. It is shown that the tracking error converges to an adjustable neighborhood of the origin whereas all signals of the closed-loop systems are semiglobally uniformly ultimately bounded. Finally, 2 simulation examples are provided to verify the feasibility and effectiveness of the proposed design methodology.